Elizabeth Hood - Distinguished Professor, AR P3 Center Co-Campus Lead - Arkansas State University, Jonesboro

Phone: 870-680-8427 (Office)
Address: PO Box 639 | State University, AR 72467
Email: ehood@astate.edu


A-State; College of Agriculture, Engineering and Technology; Arkansas Biosciences Institute

Cluster Identification:

- Plant Productivity Set-Points Cluster - addressing mechanisms that limit protein and biomass accumulation

Research Areas/Expertise:

- Biofuels & Biobased Products                                     - Feedstock Processing
- Plant Genetics/Breeding                                              
- Protein Processing & Trafficking
- Plant Made Industrial/Pharmaceutical Proteins          - Plant Cell Walls
- Transcriptomics                                                          
- Transformation Technologies

Research Summary | Selected Publications | Lab Members | Key Collaborators | Research Projects | Links

Research Summary:

Research in the Hood laboratory is focused on 1) plant made industrial proteins and 2) cell wall structure and utility.  To accomplish the first project, genes for enzymes from various sources (fungal, bacterial, etc) are transformed into corn. The regulatory sequences for the genes direct expression to the seed. The dry, stored grain is a stable environment for the enzymes so they can be processed on demand for the industrial application. The current focus is on cellulases and redox enzymes to be applied to plant cell wall deconstruction for biobased products. We are using transcriptomics approaches to understand mechanisms to improve protein accumulation in the seed. For the second project, we are looking at the function of cell wall proteins in specific tissues such as silk and pericarp. We are also striving to understand the function of expansin in the synergy of activity with cellulases to deconstruct cellulose.

Selected Publications:

Journal Publications:

  • Hood, EE, Love, R, Bray, J, Lane, J, Clough, RC, Pappu, K Drees, C, Hood, KR, Yoon, S, Ahmad, A and Howard, JA; 2007 Subcellular targeting is a key condition for high-level accumulation of cellulase protein in transgenic maize seed. Plant Biotechnology J; 5:709-719
  • Jimenez-Flores, R, G Fake, J Carroll, EE Hood and J Howard; 2010; A Method for Evaluating the Release of Fermentable Sugars from Cellulosic Feedstock; Enzyme and Microbial Technology; 47 (5) 206-211
  • Vicuna Requesens, D, E Egelkrout, SP Devaiah and EE Hood; 2011; A method for transient expression in maize endosperm; In Vitro Cellular and Developmental Biology--Plant DOI: 10.1007/s11627-010-9305-8
  • Hood, EE, SP Devaiah, G Fake, E Egelkrout, K Teoh, D Vicuna Requesens, Y-K Chang, C Hayden, KR Hood, K Pappu, J Carroll and JA Howard; 2011 Manipulating corn germplasm to increase recombinant protein accumulation; Plant Biotechnology Journal, doi: 10.1111/j.1467-7652.2011.00627
  • Hayden, C, G Fake, J Carroll, EE Hood and JA Howard; Synergistic Activity of Plant Extracts with Microbial Cellulases for the Release of Free Sugars; BioEnerg Res DOI 10.1007/s12155-011-9149-z
  • Sparrow, Penelope, Broer, Inge, Hood, Elizabeth E, Eversole, Kellye, Hartung, Frank, Schiemann, Joachim; 2013; Risk assessment and regulation of molecular farming – a comparison between Europe and US; Current Pharmaceutical Design, 19:
  • Devaiah, Shivakumar Pattada, Vicuna Requesens, Deborah, Chang, Yeun-Kyung, Hood,, Kendall R, Flory, Ashley, Howard,, John A. and Hood, Elizabeth E; Heterologous expression of cellobiohydrolase II (Cel6A) in maize endosperm; Transgenic Research—Plant; 22 (3):477-488; DOI 10.1007/s11248-012-9659-2.
  • Egelkrout, Erin, McGaughey, Karen, Keener, Todd, Ferleman, Amberlyn, Woodard, Susan, Devaiah, Shivakumar, Nikolov, Zivko, Hood, Elizabeth, Howard, John. 2013; Enhanced expression levels of cellulase enzymes using multiple transcription units; Bioenergy Research, 6 (2):699-710 DOI 10.1007/s12155-012-9288-x.
  • Teoh, Keat (Thomas), Vicuna Requesens, Deborah, Devaiah, Shivakumar P, Johnson, Daniel, Huang, Xiuzhen, Howard, John A, and Hood, Elizabeth E. 2013 Transcriptome analysis of embryo maturation in maize, BMC Plant Biology, 13:19-35 doi:10.1186/1471-2229-13-19
  • Garda, M., Vicuna Requesens, D.V., Devaiah, S.P., Hood, K.R., Chang, Y.K., Dabul, A.N. and Hood, E.E.; 2014; Assessment of Field-Grown Cellulase-Expressing Corn; Transgenic Research; DOI 10.1007/s11248-014-9838-4
  • Hood, N.C., K.R. Hood, S.L. Woodard, S.P. Devaiah, T. Jeoh, L. Wilken, Z. Nikolov, E. Egelkrout, J.A. Howard, and E.E. Hood;2014; Purification and Characterization of Recombinant Cel7A from Maize Seed. Applied Biochemistry and Biotechnology; DOI 10.1007/s12010-014-1232-4
  • Flory, A.R., Vicuna Requesens, D., Devaiah, S.P, Teoh, K, Mansfield, S.D and Hood, E.E. 2013. Development of a green binder system for paper products; BMC Biotechnology; 13:28 http://www.biomedcentral.com/1472-6750/13/28
  • Yoon, S. SP. Devaiah, S Choi, R Love, J Lane, C Drees, JA Howard and EE Hood; 2015: Overexpression of the cucumber expansin gene (Cs-EXPA1) in maize seed; Transgenic Res. 25(2), 173-186;  DOI 10.1007/s11248-015-9925-1.
  • Pippenger, Nicholas, Richard S. Segall, Daniel Berleant, Kellye A. Eversole, Robert A. Mustell,, Deborah Vicuna-Requesens, and Elizabeth E. Hood; 2015, Extracting Numerical Information about Corn Composition from Texts, J. on Systemics, Cybernetics and Informatics: 13(5):68-75, ISSN: 1690-4524 (Online)
  •  Yactayo-Chang, JP, S. Yoon, K Teoh, NC Hood, A Lorence, EE Hood; 2016; Failure to over-express expansin in multiple heterologous systems; New Negatives in Plant Sci. 3-4:10–18 doi:10.1016/j.neps.2016.03.002
  •  Hood EE; 2016; Plant-based biofuels [version 1; referees: 2 approved], F1000Research5 (F1000 Faculty Rev): 185 (doi: 10.12688/f1000research.7418.1)
  • Hood, E.E., and L. Bauer; Catalysts and Enzymes in Biofuel Production; Biofuels Digest, June 2016

Recent Books and Chapters:

  • Howard, JA and EE Hood, Eds., Commercial Plant-Produced Recombinant Protein Products: Case Studies, 2014; Series: Biotechnology in Agriculture and Forestry; Springer, Dordrecht, Netherlands, 281 pp.
  • Hood, E.E. and P. Christou; 2014; Introduction—Plant Produced Protein Products; In: Commercial Plant-Produced Recombinant Protein Products: Case Studies, JA Howard and EE Hood, Eds., Series: Biotechnology in Agriculture and Forestry; Springer, Dordrecht, Netherlands; pp. 1-11.
  • Hood, E.E. and J.A. Howard; 2014; Commercial Plant-Produced Recombinant Avidin, In: Commercial Plant-Produced Recombinant Protein Products: Case Studies, JA Howard and EE Hood, Eds., Series: Biotechnology in Agriculture and Forestry; Springer, Dordrecht, Netherlands; pp. 15-25.
  • Hood, E.E. and D. Vicuna Requesens; 2014; Cellulases from the transgenic maize production system, In: Commercial Plant-Produced Recombinant Protein Products: Case Studies, JA Howard and EE Hood, Eds., Series: Biotechnology in Agriculture and Forestry; Springer, Dordrecht, Netherlands; pp. 231-246.
  • Hood, E.E.: 2014; Keys to Bioproducts from Agriculture, Soon They’ll Know our Secrets; In:  R.W. Berne, ed., Creating Life from Life: Biotechnology and Science Fiction; Pan Stanford, 298 pp.
  • Commercial Production of Avidin in Plants—5,767,379: C. Baszczynski, E.E. Hood, S. Maddock, T. Meyer, J. Register, D. Witcher, J. Howard. Issued 6/16/1998
  • Commercial Production of b-Glucuronidase in Plants—5,804,694: W. Bruce, E.E. Hood, D. Peterson, J. Register, D. Witcher, J. Howard. Issued 9/08/1998
  • Commercial Production of Aprotinin in Plants — 5,824,870: C. Baszczynski, T. Czapla, E. E. Hood, T. Meyer, D. Peterson, G. Rao, J. Register, D. Witcher, J. Howard. Issued 10/20/1998
  • Commercial Production of Proteases in Plants — 6,087,558: E.E. Hood, J. Howard. Issued 7/11/2000
  • Commercial Production of Proteases in Plants — 7,049,484: E.E. Hood, J. Howard. Issued 5/23/2006
  • Commercial Production of Laccase in Plants — 6,800,792: J. Howard, E.E. Hood, J. Jilka. Issued 10/05/2004
  • Novel Plant Promoter Sequences and Methods of Use for Same— J. Jilka, E.E. Hood, J. Howard. 6,977,325, Issued 12/20/2005; RE41,318 (reissued 5/4/2010)
  • Method of Increasing Recovery of Heterologous Active Enzymes Produced in Plants—6,632,930: E.E. Hood, J. Howard, M. Bailey, F. van Gastel, H. Wang, M. Ward, S. Woodard. Issued 10/14/2003
  • Method of Increasing Heterologous Protein Expression in Plants—Issued 7,541,515; E.E. Hood, J. Howard, D. Delaney. Issued 6/2/2009
  • Commercial production of recombinant manganese-dependent peroxidase in plants— 7,067,726 E.E. Hood, J. Howard, R. Clough, K. Pappu. Issued 6/27/2006
  • Methods for commercial production of heterologous laccase in plant tissue and extraction of the laccase from plant seed—7,071,384; J. Howard, E.E. Hood, M. Bailey-Piatchek; Issued 7/04/2006
  • Monocotyledonous seed expressing exo-1,4 b-glucanase—8,558,058; E.E. Hood and J. Howard; Issued, 10/15/2013
  • Methods of expressing and detecting activity of expansin in plant cells—2013/ 61771965; E.E. Hood, S. Yoon
  • Regulatory Sequence Of Cupin Family Gene—2014/606,552; E.E. Hood, T. Teoh

Lab Members:

Mary Rath, undergraduate student, 2015 - present

Corey Green, undergraduate student, 2016 - present

Hong Fang, PhD student, 2016 - present

Joshua Byrd, MS student, July 2017 - present

Key Collaborators

Dr. John A. Howard, President and CEO, Applied Biotechnology Institute, San Luis Obispo, CA

Dr. Anahita Izadyar, Dept. of Chemistry and Physics, A-State

Dr. Julie Carrier, Institute of Agriculture, University of Tennesse - Knoxville

Dr. Argelia Lorence, Dept. of Chemistry and Physics, A-State

Research Projects

  • Bringing Genomes to Fields to Arkansas, $25,000, April 1, 2016-March 31, 2017; $20,000, April 1, 2017-March 31, 2018; Arkansas Corn and Grain Sorghum Board; PI: Elizabeth Hood
  • Plant-Produced Manganese Peroxidase as a Bioremediation Agent, $149,010, January 1, 2017-December 31, 2018; USDA NIFA Capacity Building; PI: Elizabeth Hood
  • Development of a new tool for assessing gene function in corn, $3,950, July 1, 2016-June 30, 2017; Faculty Research Funds; PI: Elizabeth Hood
  • Enzyme Inhibition, $291,500, January 1, 2016-December 31, 2018; USDA NIFA Capacity Building; PI: Elizabeth Hood